Abstract: The disclosure proposes a projector and a projector booting method. The projector includes a receiver device, a storage device, and a processor, which is coupled to the receiver device and the storage device. The receiver device receives an input data. The processor is used for comparing the input data with a preset data in the storage device. The processor starts a timer after determining that the input data matches the preset data. The processor transmits a light source driving signal to a light source actuator to turn on a light source when the processor receives a booting signal before the timer expires. The disclosure can prevent the projector from being unintentionally turned on.

Abstract: A projection apparatus includes a light valve, a lens module, a distance measuring module, a lens position detection module and a processor. The light valve forms an image beam. The lens module projects the image beam onto a display surface. The distance measuring module detects a distance between the lens module and the display surface to obtain a first distance value. The lens position detection module detects a position of the lens module to obtain a second distance value. The processor receives the first distance value from the distance measuring module, receives the second distance value from the lens position detection module and obtains an effective focus range according to the second distance value.

Abstract: Provided is a projection device having a signal receiver, a communication interface, a storage, a processor, and a projection module. The signal receiver receives a signal source. The communication interface is configured to receive context default settings. The storage stores a current setting. The processor is configured to determine a current projection context and receive at least a corresponding one of the context default settings according to the current projection context through the communication interface. The processor adjusts the current setting according to the received context default setting. The projection module is connected to the processor, and projects an image according to the adjusted current setting and the signal source. Further, a projection setting adjustment method for the aforementioned projection device is also provided.

Abstract: The disclosure proposes a projector and a projector booting method. The projector includes a receiver device, a storage device, and a processor, which is coupled to the receiver device and the storage device. The receiver device receives an input data. The processor is used for comparing the input data with a preset data in the storage device. The processor starts a timer after determining that the input data matches the preset data. The processor transmits a light source driving signal to a light source actuator to turn on a light source when the processor receives a booting signal before the timer expires. The disclosure can prevent the projector from being unintentionally turned on.

Abstract: A projection apparatus includes a light valve, a lens module, a distance measuring module, a lens position detection module and a processor. The light valve forms an image beam. The lens module projects the image beam onto a display surface. The distance measuring module detects a distance between the lens module and the display surface to obtain a first distance value. The lens position detection module detects a position of the lens module to obtain a second distance value. The processor receives the first distance value from the distance measuring module, receives the second distance value from the lens position detection module and obtains an effective focus range according to the second distance value.

Abstract: A method for switching function menus is applied to a projector for the function of on screen display (OSD). The method includes the first step of providing a first function menu, a second function menu and a fuzzy menu. The first function menu has a first picture. The second function menu has a second picture. The fuzzy menu has a fuzzy picture. Specially, the first and the second pictures have an edge which is distinguished by eyes of human beings, but the fuzzy picture has an edge which is undistinguished by eyes of human beings. Subsequently, the first, the fuzzy and the second function menus are switched in sequence at a frequency which is not detected by eyes of human beings, so that the first, the fuzzy and the second pictures are shown in sequence.

Abstract: A projection display apparatus and digital zooming method thereof is disclosed. The projection display apparatus receives a first image and includes a control unit, an image processor, an image scaler, a projection lens and a display unit. The control unit is for calculating an image area needed to be removed from the first image according to a zooming multiple. The image processor is for removing the image area form the first image to generate a second image. The image scaler is for scaling the second image to generate a third image. The display unit is for receiving the third image and projecting the third image onto a screen via the projection lens. The third image has a specific pixel count relative to the display unit.

Abstract: A method for managing bulb brightness, which is suitable for use in a displaying apparatus based on lamp, is proposed. The characteristics of the method include switching the lamp to the standard mode with maximum brightness in the displaying state, and switching the lamp to the ECO mode with reduced brightness in the other states. Therefore, this method is more adaptive than the prior art, making the apparatus to be more convenient in use, and optimizing the use of the lamp in presenting higher picture quality, and prolonging the lifetime of lamp.

Abstract: A projector comprising a main body, a radio frequency identification (RFID) tag and a controller is provided. The main body comprises a light module and an optical engine. The light module is used for emitting a light. The optical engine is used for receiving the light and outputting a projecting image. The RFID tag is coupled to the main body and is used for providing an identification data to recognize the identity of the projector or a user. The controller reads the identification data from the radio frequency identification tag or writes the identification data to the radio frequency identification tag by a communication interface.

Abstract: A projection display apparatus and digital zooming method thereof is disclosed. The projection display apparatus receives a first image and includes a control unit, an image processor, an image scaler, a projection lens and a display unit. The control unit is for calculating an image area needed to be removed from the first image according to a zooming multiple. The image processor is for removing the image area form the first image to generate a second image. The image scaler is for scaling the second image to generate a third image. The display unit is for receiving the third image and projecting the third image onto a screen via the projection lens. The third image has a specific pixel count relative to the display unit.

Abstract: A projection display system and cursor control method thereof is disclosed. The projection display system includes a projection display device and an operation unit. The projection display device is for displaying an image and a cursor. The projection display device includes an on screen display (OSD) unit for generating the cursor in the image. The operation unit is for controlling a moving direction of the cursor through the OSD unit.

Abstract: An apparatus and a method accommodating to an operating system for processing screen data are provided. A virtual video memory is virtualized in a system memory of a computer. Next, in a kernel mode of the operating system, the screen data are written in a video memory of a graphic card of the computer and in the virtual video memory. Then, in the kernel mode, the screen data in the virtual video memory are compressed. And the compressed screen data are transmitted out through a short-distance wireless transmission module of the computer to an outer display device.

Abstract: A method and a control device using the same for controlling a display device comprises the steps of: generating a full image on the screen, in which the full image is generated in response to the complete image data; next generating a frame on the full image, and adjusting a size and a position of the frame; subsequently, capturing a part of the full image in the frame to define a display image; and magnifying the display image to the same size of the screen to display on the screen. Thereby, the defect from the boundary of the full image is eliminated.

Abstract: A method of customizing the startup logo of a projector. The main steps of the method include the following. First, a projector is connected to an external device. Thereafter, in batches, image data is read from an image file in the external device, stored in a memory buffer and written into a built-in flash memory of the projector to replace the startup logo with the image file. The method has the advantage of reaching the maximum resolution supported by the projector without any scaling operation or losing any quality. Moreover, the startup logo is fetched from an external device. Hence, its source is more comprehensive and can be changed at any time.

Abstract: A method for managing bulb brightness, which is suitable for use in a displaying apparatus based on lamp, is proposed. The characteristics of the method include switching the lamp to the standard mode with maximum brightness in the displaying state, and switching the lamp to the ECO mode with reduced brightness in the other states. Therefore, this method is more adaptive than the prior art, making the apparatus to be more convenient in use, and optimizing the use of the lamp in presenting higher picture quality, and prolonging the lifetime of lamp.

Abstract: A wireless projector equipped with an embedded download server to allow users to directly download transport software and driver from a server to a client device to improve use convenience. Through the embedded download server and the technique of Universal Plug and Play (UPnP), the client device can directly download the driver from the embedded download server through a wire or wireless communication mode, and directly download the transport software between the client device and the projector to eliminate the inconvenience of pre-installing the transport software and the driver before using the wireless projector. In addition, administrators can directly update the firmware and software of the projector to improve management.

Abstract: A method for simplifying on-screen displays (OSD) suitable for display devices such as projectors is provided. The method mainly comprises the following steps: entering into an edit view from an advanced OSD; selecting one or more desired options; saving the selected options; and displaying a basic OSD based on the selected options. Wherein, both the advanced OSD and the basic OSD include a switch function for switching between each other. This method enables the user to find frequently used options easily, simplifies the operation procedures of the function keys, and still preserves all of the previously existing functions.